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Finding the Fourth Proportional to 70,880.69, 106,284.13 and 33,430.71

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Solution

The fourth proportional to 70,880.69, 106,284.13 and 33,430.71 is: 50,128.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,880.69 : 106,284.13 = 33,430.71 : x
  2. Step 2: Convert to fraction form
    70,880.69/106,284.13 = 33,430.71/x
  3. Step 3: Cross multiply
    70,880.69x = 106,284.13 × 33,430.71
  4. Step 4: Simplify right side
    70,880.69x = 3,553,153,927.63
  5. Step 5: Solve for x
    x = 3,553,153,927.63/70,880.69
  6. Step 6: Final answer
    x = 50,128.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.